[Pw_forum] electron-phonon output explanation
XiaoSong Du
dxs571 at mail.ustc.edu.cn
Thu Sep 1 15:43:26 CEST 2005
In the test of electron-phonon coefficient, the lambda was caculated using several
values of gaussian broadening from 0.01-0.1, but the inputfile of non-scf
caculation has already gotten a degauss value of 0.022, what's the matter?And how
i can control gaussian broadening range?
And the output file contains such result
Gaussian Broadening: 0.030 Ry, ngauss= 1
DOS = 2.225329 states/spin/Ry/Unit Cell at Ef= 8.330064 eV
double delta at Ef = 16.641185
lambda( 1)= 0.192566 gamma= 14.766974 GHz
lambda( 2)= 0.192566 gamma= 14.766974 GHz
lambda( 3)= 0.205463 gamma= 46.832268 GHz
What's the meaning of three gammas in parallel to lambda?Does it have something
with the phonon frequency
omega( 1) = 6.007176 [THz] = 200.379142 [cm-1]
omega( 2) = 6.007176 [THz] = 200.379142 [cm-1]
omega( 3) = 10.356665 [THz] = 345.463465 [cm-1] ?
Thanks to your reply.Best wishs
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